Perk suffered the non-contact injury during a scrimmage with Galaxy II several weeks ago. The 25-year-old goalkeeper has made seven career appearances for the Galaxy first team since joining the club in 2010.

The club will open up the 2015 MLS regular season on Friday when they host the Chicago Fire at StubHub Center. In 2015, the Galaxy will look to once again dominate at home where they went an astounding 15-1-4 in both regular season and postseason matches.

In the very first edition of By the Numbers in 2015, we take a look at the Galaxy's goal differential at home during the 2014 campaign.

Robbie Keane has a message for budding star Bradford Jamieson IV as the youngster prepares to carve out a starting role during the 2015 regular season.

Keep your head up.

No, he’s not saying it figuratively, but quite literally, as the winger seeks to become an offensive force along the left side of the Galaxy midfield.

Jamieson earned the start on the left flank in the club’s final preseason match against the San Jose Earthquakes. However, the game was a mixed bag for Jamieson who displayed an ability to launch clever shots at goal, but also struggled to make a consistent impact along the flank before he was pulled for eventual goal scorer Jose Villarreal.

Following the match, Galaxy head coach Bruce Arena said that Jamieson is “still just a kid” with a “ways to go” in his development, but his captain declared that there will be “no more excuses” made for the Galaxy’s youngsters, stating that they’ll be expected to contribute in the year ahead.

“He’s young. He still has to learn,” Keane said after the club's final preseason game in San Jose. “With the ability that he has, he can beat people no problem, but what young players do, and I’ve seen this for many years, they feel like if they beat someone then they can just keep going and keep [moving forward]. The reality is that it doesn’t always happen that way.

To truly hammer home the lesson, Keane referenced 2014 breakout star Gyasi Zardes, and the strides that he has made over the past two years.

“[Jamieson] got to keep his head up and once he learns to do that, as we saw last year with Gyasi...,the quicker that the younger lads learn then the better that they’re going to be, and the more opportunities that they’re going to have for the team,” said Keane. “Sometimes he just needs to pick up his head a little bit more and see what his options are. Once he does that, he’ll be a big player for this team because he’s got all the ability in the world.”

Jamieson, to his credit, agreed with the captain and noted that if he’s going to challenge for a regular starting spot then he’ll need to become a consistent contributor.

“[Keane] told me that I need to be able to pick my head up a half a second [quicker], and other little things that are going to allow me to separate myself from other players,” said Jamieson. “I still feel that if I’m pushing hard and I’m putting in good performances, I think that I’ll be to solidify a spot on the squad. This is a huge opportunity for me.”

"He's an experienced forward. He's scored 100 goals in this league and there's no reason to believe that he can't score a few more," he said. "He's a good experienced forward. He can hold the ball up, he's hard to play against. He's going to play a role for us this year. We're going to have a lot of games this year and it's going to help having an experienced forward on the field."

THE GALAXY WANT TO MAKE STUBHUB CENTER A FORTRESS

The LA Galaxy had a nearly unblemished record at StubHub Center in 2015, and if the club is to repeat as MLS Cup champions, the belief is that they must continue to dominate at home.

A year ago, the Galaxy went a stunning 15-1-4 at home in all MLS competitions with their lone loss came in club's season opener way back on March 8, 2014. As the Galaxy prepare for the upcoming season, team captain Robbie Keane believes that staying perfect at home is key for LA's hopes of another title.

"We need to continue to do the same [thing we did last year]," said Robbie Keane. "We need to make sure that this place is difficult for players and teams to come. We want them to not enjoy coming here and know that it'll be a difficult game when you play against the LA Galaxy."

BRUCE ARENA: LA GALAXY AREN'T "DEFENDING" ANYTHING IN 2015

The LA Galaxy will enter the 2015 season as the defending champions of Major League Soccer, but Galaxy boss Bruce Arena has a qualm with the use of the word "defending."

"We're not defending anything," said Arena. "Its' a new season. We're trying to win a championship, we're not defending one."

The native of Turrialba, Costa Rica was signed by Galaxy II in January for the upcoming 2015 USL season. A Big West All-freshman team selection during his only year at Cal Poly in 2014, Lassiter last played with Swedish second division club GAIS where he made 12 appearances scoring one goal.

During the tournament, the Costa Rican Under-23's will face MLS sides Columbus Crew SC, Philadelphia Union, New York Red Bulls and Toronto FC as well as OKC Energy FC (USL), HB Koge (Denmark), and London United, which is a team made up of out of contract players.

The tournament will serve as a tune-up for this summer's CONCACAF Men's Olympic Qualifying tournament which will be held in the United States from October 1-13. The top two teams will qualify for the 2016 Olympic Games in Brazil while the third place team will face Colombia in a two-leg playoff in Brazil in March 2016.

CARSON, Calif. – Robbie Rogers excelled with the LA Galaxy as a left back last season, but during Friday’s 2-1 scrimmage victory over Seattle Sounders FC, he showcased his versatility.

Rogers started and went 45 minutes at right back while Todd Dunivant started along the left side. The switch allowed Dunivant to slide into his natural position while Rogers—who is naturally right footed—was slide into a new place along the back four.

"That's an option and obviously we're in preseason, we'll look at all options,” Arena told reporters of the outside back switch. “As we experienced last year during the season, we have to have players prepared to play a number of spots along the back line and that's a good exercise for us to get in today.”

Added Rogers, “I can play on both sides wherever Bruce needs me. It is a little different in terms of finding the space on the field so I have to get used to that, but it comes pretty quickly.

For Dunivant, Rogers’ move to the flank could be his path back into the starting lineup after an injury-riddled 2014 season.

“It is still the preseason so we’re still trying to figure out what combination works. It’s all about getting better,” he said. “I need to earn the spot in training and continue to learn every day and get better. I’ll let the cards fall where they may and I think if I’m healthy and Robbie is healthy then we’ll both be on the field one way or the other.”

Decisions on trialists upcoming

The LA Galaxy will likely have a decision on whether they will keep trialists Andre Auras, Edson Buddle and Ramon Martin Del Campo with the club prior to the trip to Europe.

In an interview with reporters earlier this week, Galaxy head coach Bruce Arena said that a decision was a possibility before the team departs for the Republic of Ireland at the end of the week.

Draft picks Ignacio Maganto and Daniel Keller are expected to travel to Europe while injured goalkeeper Andrew Wolverton will not join the team until they return from Europe. Meanwhile, defender Daniel Steres who had been training with the club since the start of the season has been dealing with a calf injury.

A.J. DeLaGarza may return to practice next week

Right back A.J. DeLaGarza has yet to suit up for the Galaxy in a scrimmage during the preseason due to a leg injury, but head coach Bruce Arena assured reporters earlier this week that he'll be back in practice before the team departs for Europe.

"It's possible that he'll be training next week," Arena told reporters after the club's 2-1 victory over Seattle Sounders FC. "We're not sure yet at this point."

CARSON, Calif. -- Many have taken U.S. head coach Jurgen Klinsmann to task for his recent comments about the fitness of members of the U.S. National Team, but LA Galaxy striker Gyasi Zardes believes that he is a true success story of Klinsmann's conditioning program.

"I want to help them get back into shape, get back into rhythm, but, oh, by the way, we're going to play [two friendlies]. So some learned over time and prepared themselves really well, and some don't have that knowledge yet," Klinsmann said. “They don't have that 'oh, OK, at the beginning of December, go to Athletes' Performance in Phoenix and get myself fit.' That culture we don't have yet. What the other sports are doing really well, they use their preparation for preseason, four to six weeks prior to going into preseason with their NBA team, NFL team of whatever, they go to these fitness institutes and they get themselves fit.”

Klinsmann's claims were met with major pushback from numerous places including by former national team defender Alexi Lalas but such condemnation of Klinsmann meant little to LA Galaxy striker Gyasi Zardes who is in camp with the national team and is expected to play a major role when they take on Panama on Sunday at StubHub Center.

In fact, Zardes believes that he's gotten even fitter just by training with the U.S. over the last month.

"Fitness is a key component of the game because you need to be good for 90 minutes. I'm glad that we do a lot of fitness with the national team and it's wonderful to experience different types of fitness because each coach has different methods. [Jurgen's] philosphy toward fitness is incredible," Zardes told LA Galaxy Insider. "I personally think that it is helping me improve as a player because I feel myself able to run longer. My stamina is up and my acceleration is growing even more. I think that I'm growing in this field."

CARSON, Calif. -- The LA Galaxy won their second preseason match of 2015 with a 6-1 result over Cal-State Fullerton in a closed-door scrimmage on their training field otuside StubHub Center.

Andre Auras notch a brace in the match with two second half goals while Robbie Keane, Charlie Rugg, Rafael Garcia, and Raul Mendiola each added a goal of their own. The Galaxy also conceded in the second half after Brian Rowe made a stop in the second half, but had a rebound trickle out for a Fullerton goal from close range. LA used a total of 22 players in the match and saw their preseason record move to 2-0-0.

"Our fitness is getting a little bit better, we're getting a little bit better with our ball movement, but we still have a way to go. We're still just basically a week into preseason," Galaxy head coach Bruce Arena told reporters after the match. "I thought the Cal-State Fullerton team played really hard and were a good test for us. They didn't make it easy on us which was good. We had an advantage."

CARSON, Calif. -- Forward Charlie Rugg spent all of 2014 with LA Galaxy II, but as the third-year striker heads into the third year of his professional career, he's looking to carve out a role for the first team.

Rugg earned a start along the left side of midfield during the club's first match of 2015, a closed-door scrimmage against Ventura County Fusion and performed well in helping LA to a 2-0 victory. With the Galaxy lacking depth along the left side of midfield with the departure of Landon Donovan in the offseason and Baggio Husidic's likely move to the center of the park in light of Marcelo Sarvas' trade to Colorado Rapids, Rugg may have a chance to work his way back into Bruce Arena's plans.

"I enjoyed playing there. It's been a couple months since I played and it was good to play," said Rugg. "It takes a little getting used to when you change any position, but I like it and I think that I could get used to it. I think that I can use my speed on the wing. ... I'm ready to help in any way that I can and I like to play whereever I can."